Slack Outage History

Slack users were affected by two issues. First, some workspace administrators encountered problems when inviting multiple existing workspace members to channels by email address, impacting channel management. The issue began on Feb 14, 2025 3:44 PM UTC and prompted ongoing updates to the Workspace/Org Administration component. A separate issue emerged for non-English iOS users who could not set the default status, reported on Feb 17, 2025 9:14 PM UTC, adding to the disruption across Slack clients.

Slack issued four official status updates during the incident, and both the Workspace/Org Administration and Notifications components were affected at various times. The problems were resolved by Feb 17, 2025 11:44 PM UTC, with all components restored to normal. The incident lasted from Feb 14, 2025 3:44 PM UTC to Feb 17, 2025 11:44 PM UTC, spanning about three days.

Slack Workflow Builder users experienced errors when adding or triggering steps, with messages like 'We had a problem loading your spreadsheet'. This caused a partial outage for the Workflows component, affecting users attempting to create or run automated workflows. The incident began at Feb 13, 2025 7:44 PM UTC and was resolved by Feb 13, 2025 10:24 PM UTC, lasting 2 hours and 40 minutes. Slack issued 2 status updates during the incident, including the initial notification of trouble with Workflow Builder and a follow-up when the issue was resolved.

The Slack Messaging component experienced degraded performance as custom emoji failed to load for users. The incident began at Feb 11, 2025 9:44 PM UTC and was resolved by Feb 12, 2025 11:14 PM UTC, lasting about 25 hours and 30 minutes. The issue impacted the ability to view or use custom emoji in messages.

Slack released two official status updates during the incident, documenting ongoing investigation and restoration. The issue was limited to the Messaging component.

Slack experienced errors when using search filters, causing a degraded experience for users who rely on search to locate messages. Some users encountered error messages when applying filters, and the issue appeared limited to the Search component.

Slack experienced a brief issue with emoji rendering and emoji search within messages, impacting the Messaging component. The problem began at 5:24 PM UTC and lasted about 1 hour 15 minutes, ending with normal emoji rendering and search. Users may have observed emojis not showing up correctly or difficulties finding emoji options during the window. The Slack status page published 3 updates during the incident as the team investigated and then confirmed restoration; the issue was resolved by 6:39 PM UTC.

Slack experienced a brief issue where switching between workspaces by clicking icons in the left sidebar did not work for some users, potentially hindering workspace navigation. The problem was isolated to the Workspace/Org Administration component and did not indicate a broader Slack outage.

The incident began at Feb 6, 2025 3:09 AM UTC and lasted about 1 hour and 16 minutes, with the status returning to normal by Feb 6, 2025 4:25 AM UTC. Slack issued two official status updates during the incident, acknowledging the issue and later confirming restoration.

Slack experienced a partial outage affecting admin tooling, with Org and Workspace Admins reporting trouble loading the People page on the admin dashboard and potential impact to Enterprise Grid workspace discovery. A separate issue disrupted Slack Connect mobile notifications. The incident involved multiple components, including Search, Notifications, and Workspace/Org Administration, leading to degraded admin workflows and delayed updates for affected users.

The incident began on Feb 4, 2025 11:00 AM UTC and was resolved by Feb 6, 2025 12:09 AM UTC. Over the course of the incident Slack issued five status updates. User reports from Converse, Texas began around 5:00 PM UTC and continued through 6:45 PM UTC, describing missing desktop notifications, inconsistent mobile notifications for Slack Connect channels, a non-working search bar, and statuses not updating. The outage lasted about 37 hours.

Slack experienced a partial outage affecting some Org Admins loading the People page and other admin dashboard pages. The issue may also disrupt the Enterprise Grid workspace discovery page.

The incident began at Feb 3, 2025 10:29 PM UTC and was resolved by Feb 4, 2025 1:45 AM UTC, lasting roughly 3 hours and 16 minutes. Slack posted two official updates during the incident, describing an investigation and remediation as the service returned to normal.

Slack experienced a brief partial outage affecting Google sign-in and Google Sheets in Workflows. The issue appeared to affect a subset of users, with errors when signing in with Google and when Workflows steps attempted to write to Google Sheets. Slack's Status page indicated two affected components, Workflows and Connectivity, and that an investigation was underway. The issues were resolved by 9:04 PM UTC, with both components returning to normal. The outage lasted approximately 1 hour 24 minutes and included two official updates. The incident began at 7:40 PM UTC.

Slack experienced a brief degradation affecting some users' ability to load threads and receive notifications. The incident began at Feb 3, 2025 5:04 PM UTC and was resolved by Feb 3, 2025 5:24 PM UTC, lasting about 20 minutes. Slack posted updates noting that investigators were looking into the problem and, later, confirming that the issue had been resolved.